Parallel bench-vise



G. E. CASSEL.

PARALLEL BENCH VISE,

APPLICATION FILED FEB. 17, I920- 1,352,787, rmmdsie t. 14, 1920.

V UNIT D srArEs ,jP AT-JENTL QF F ICE- ermine ELIAS cAssEL, orsrocxnorn, swnnnn, ASSIGNOR TO AKTIEBOLAGET cYRo,

v or srocKnoLM, swnnnn, A CORPPBIATION or SWEDEN}.

Application filed February 17, 1920'. Serial No. 359,4?7.

To all whom it may concern:

Be it known that I, GUNNAR ELIAS Gas- I sEL, a citizen of the Kingdom ofSweden, res ding at Stockholm, Sweden, have Invented much as in clampingwork the; final tightening of the movable jaw only and releasing workthe initial opening movement only must be efiected by means of a screwmech anism. v The principal feature of the invention consists inproviding the'mov'able jaw with a bolt rotatably mounted therein, acoupling mechanism' being provided between said bolt and a screw saidcoupling'mechanism normally permitting free movement of the bolt butlooking the bolt to the screw for the purpose of effecting the finaltightening of the movable jaw as soon as the bolt is rotated.

- In the accompanying drawing, a bench I vise embodying this inventionis illustrated.

Figure 1 is a longitudinal section of the vise and Fig. 2 isa crosssection thereof:

With reference to the" drawing, the nuvise, and 2 is the movable jawthereof. The

movable aw is slidably mounted, as by means of a sleeve-shaped portion 3ina corresponding boring in the fixed jaw. Rotatably but not slidablymounted in the lower 1 portion of the jaw 2 and extending through thesleeve 3 thereof is a bolt 5 the part of which extends beyond the frontof the jaw V I the left in Fig.1, while the screw 15 will i 2 andcarries a handle 6 of well known construction. The inner end of the bolt5 engages loosely in two sleeve shaped members 7 8, the former of saidmembers being slid-I ably mounted in an extension of the boring 4 has areduced diameter, while the sleeve 8 is slidably mounted within thesleeve-7.

Formed in the part of the bolt 5 engaging said sleeve-shaped members 7,8 is a plurality of longitudinally extending slots 9 (in Fig. 2 threesuch slots are shown). Each of said slots contains a double wedge 10supported by a spring 11. resting on the bottom Specification of LettersPatent.

This invention relates to a parallel bench meral 1 designates the fixedjaw of the bench PARALLEL BEnon-vIsE.

Patented sept. 1 4,,119 2o.

of the corresponding slot. One inclined'sun face 12 0f each wedgeisadapted to engage a conical recess formed'in the sleevei7; while theother inclined surface 13 ofeachwedge isadapted to engage a similarrecess formed ln'the sleeve8f The double :wedges 10 engage said recessesin such away as to prevent relative rotation of the 'members5, 7, 8,

v as will'be seen: from Fig-2,. which shows the 1 engagement of thewedges in the sleeve- 8. Inserted n the end of the sleeve 7 remote fromthe bolt 5 is a screw threaded plugffl-Lii forminga bottom of saidsleeve while the l sleeve 8 1s-formed with a-bottommade integral withthe sleeve; A threaded opening. 7o

in the plug 14 is engaged by a screw-15, ex-

:tending through the plug 14: and bearing I with its inner end againstthe bottom of the sleeve 8. The screw 15. is made integral with a'screw16 having a greater pitch than that of the screw-15 and engagingina-fixed nut 17, the screw carrying; outside thereof a head 4- f a I,The bench vise described operates-as 011,

lowsz Assuming the aws are intheposition shownin Fig. 1 and wo'rkis tobe introduced therebetween, the jaw 2-l with the bolt 5 i's first movedoutwardlywhich may beelfected without anydifficultyaslthe angle of eachf wedge-10"i's so adjusted thatthe wedgeizwill s not prevent thedisplacement of the'bolt 5.

After the jaws are, thus removed sufliciently to permlt ,the insertionof the work, the

latter is placed betweenthe jaws whereupon .the distance between thejawsis decreased bylmoving he-1W2 i rd y ll, oth jaws will contact withthe work. The bolt '5 is then turned to the right by means of the handle6. The wedges 10 will in this movement take the sleeves 7 and 8 withthem. The sleeve 7 isthereby turned about thescrew 15 and'moves,consequently, to

prevent any displacementof the sleeve 8. It is obvious that the conicalrecessesof the sleeves 7 and 8 due to the said movement will draw nearerto one another and will as a result come into contact with the wedgesurfaces 12 and 13, respectively, thereby pressing the wedgesinwardlytoward the bottom of the corresponding'slot 9 in the 8, the screw 15will be caused to turn with the bolt'5, and upon the continued turningof the bolt the screw will move outwardly (to the left in Fig. 1), dueto the engagement of the threads 16 in the nut 17. The bolt 5 with themovable jaw 2 is thereby moved toward the fixed jaw 1, till the work visrigidly clamped between the jawsiso as to prevent any further relativemovement i of the jaws. g 1

When the work is to be released, the bolt 5 is'fir'st turned to theleft. The bolt 5 will 'thentake the sleeves 7 and8 together with thescrew15, 1-6 with it, till the head 18 of the latter strikes the nut1'7, after which the sleeve 7 will'be turned inwardly (to the right) 011the screw-threads .15 thereby effecting a separation offthe sleeves 7and c by turning the bolt 5, while the main part of the'movements of themovable jaw may be effected by directly displacing thejaw bythe handwhich will, of course, result in a considerable saving of time inoperating the vise;

llaving thus described my invention,

' what I claim as new is 2 1. A bench vise comprising in combination afixed jaw and a jaw freely slidable with respect to said fixed jaw,.a'bolt rota t'ably mounted in the movable jaw, a fixed (nut, a: screwmounted in alinement with said bolt and engaglng the fixed nut, andacoupling mechanism permitting displacement of the bolt but interlockingthe latter and the screw whenthe bolt is rotated.

211A bench vise, comprising in combina- 'tion a fixed jaw, a jaw freelymovable with respect to the fixed jaw, a .bolt rotatably mountfid in themovable jaw, two sleeves movable with respect to the'fixed jaw as name.7

well. as with respect to each other,one of said sleeves being mountedwithin the other,

while both of saidsleeves are engaged by said bolt, a screw engaging ascrew-threaded hole in the bottom of one of said sleeves and bearingagainst the bottom of the other sleeve, a second screw made integralwith the first-mentioned screw, a fixed nut engaged by said. secondscrew, and means for causing the said sleeves to move with the Y boltupon rotationof the latten 3. A bench vise, comprising in combination a"fixed jaw, a jaw freely movable with respectto the fixed jaw, a boltrotatably mounted in the movable jaw, two sleeves; movable with respectto the fixed jaw as,

well as with respect to each other, one-of said sleevesvbeing mountedwithin the other, while both of said sleeves are engaged by said bolt, ascrew engaging a screwrthreaded I hole in the bottom of one of sa dsleeves and bearing against the bottom of. the other sleeve, a secondscrew made integral with the first-mentioned screw, and the pitch ofwhich is greater than that of the said .first-Inen;

tioned screw, a fixed nut 'engagedby said second screw, and meanspermitting longitu 'dinal displacement 'of the bolt with respect to saidsleeves but'causing the sleeves to move with the bolt upon rotationiofthe latter. I 4. A bench vise, comprising in combination a fixed jaw, ajaw freely movable with respe tto e fix jaw, a b rot tably mounted inthe movable jaw',,th'ere being longitudinal slotsin said bolt, a fixednut,

wedge-shaped looking members in Said lots, w le es mov blymounted inthev jaw and one of which is movably mounted within the-other, saidsleeves being engaged by :the bolt and having inclined'siirfacesforengagement withsaid sleeves, and a screw engaging with said sleeves soas to ca lfifla e ativ Ql ud na m ve nt thereof pon rotation of thesleeves, r

. In testimony whereof l have signed my i GUNNAR stias oasssty

